Upon arrival customer stated that she was having issues with unit keeping house cool during the mid afternoon. Stated that water has filled inside the emergency drain pan before and system has froze. After inspection of system found that unit is a 5 ton system and home is a 1800sqft home. The unit is oversized for the house. The supply duct work totaled to 1,415cfm and the return had 1,100 cfm. The old system use to either be a 3 ton or 3.5 ton system before it was made bigger. A 5 ton system is not needed base off square feet of home. The TXV metering device is failing and keeps search causing unit to have freezing issues. Spoke with customer by phone about issues with unit. Recommended changing system to correct size for home, customer stated she has company coming out who installed system and if they are unable to do anything for her she will contact us. Repairs will not necessarily work for system due to unit being over sized.